Peter Travers was blown away by mixed martial arts expert Gina Carano's performance in Haywire, Steven Soderbergh's new movie about a black-ops soldier out for revenge. Soderbergh's film is gleefully violent, and Carano kicks the crap out of male co-stars Michael Fassbender, Ewan MacGregor and Channing Tatum. Her breakout performance in this film has Travers wondering: Who is the best woman fighter in all of cinema? Let him know by tweeting @petertravers on Twitter.